This is a Shunting Permitted Indicator (SPI) and works in conjunction with a stop signal or a shunt signal. The SPI shows a yellow cross illuminated by light and authorises the Driver to shunt past the associated stop/shunt signal in the ‘On’ position. A proceed hand signal must always be shown at the signal.

Hey Pawan. The line officially starts just after the Ernakulam Town-Kottayam line bifurcates from main line. But the line is not used there. This marker is situated there. The line is used fully after Ernakulam Marshalling Yard. These lines look unused but are defenitely used. This line bends sharply to left just before Trippunittura

Jimmy, do these lines run all the way upto KRL? Where do they start from..Tripunithura? When I used to travel towards FACT in Ambalamedu, I only used to see some unused rusting lines next to KRL. I didn't know if there were some other newly laid lines up to KRL.

How refreshing to see this. I wish IR would adopt this practice for all such events.

This is what I really like. Flagging off by a senior railway staff from lower cadre. And not by any politicians or high ranking railwaymen

Nice to see that inspite of such heavy traffic, all trains have specific platform numbers alloted :)

Congrats, Ashish. There is a lot of touch ups. No road, the water is blue, color of the loco....

http://www.irfca.org/gallery/Wagons/Auto+Load+Sensing+Device.JPG.html
Please read the caption and comments attached to this picture.
The device to the left is the Distributor Valve which is the most important part of the Air-Brake system and actually consists of various sub-assemblies and valves.The ring at the bottom is pulled to release the brakes even if the brake-pipe pressure is not available.

Wow! Where does this institute have a branch in Mumbai? I want to join a crash course ;-)

Is this the lever to set air brake distibution valve?